Ukraine has the fastest growing Aids epidemic in Europe. According to United Nations forecasts, nearly two million could die from the disease over the next decade. At the centre of this explosion is the Black Sea port of Odessa, a cosmopolitan city with a tradition of drug use and prostitution. Olenka Frenkiel meets a police officer and a pimp who havejoined forces to fight the rapid spread of HIV in their City. Producer Lucy Ash. Repeated Monday 8.30pm